NIF vs. NISS vs. SNS Number: What’s the Difference?
Moving to Portugal comes with a fair amount of paperwork. Among the first things you will probably hear about are the NIF, NISS and SNS User Number.
Although all three are identification numbers, they serve completely different purposes.
Get your NIF the Easy way – Quick Guide
The Tax Identification Number (NIF) is essential for anyone planning to live, work or do business in Portugal. You’ll need it to open a bank account, sign contracts, access public services and even make certain purchases.